The Keen Trezzo II WP boot is a blend of style and comfort. It is constructed with a waterproof and breathable membrane that keeps the foot dry and fresh. The three hook-and-loop straps at the instep, the ankle, and the shaft offer a personalized fit. These straps have a rubber grip for easy wearing. This shoe has a non-marking rubber outsole. With the Keen.Warm insulation, this shoe provides warmth and a soft touch to your little one's foot.